ok here's my setup:
b18c1 gsr motor
drag 3 turbo kit
vafc2
rc440cc injectors
walboro 255 fuel pump
skunk2 cam gears
aem adjustable fuel press reg

a lot of people say that i do not need to use the fmu because of tricking the computer with the afc and the bigger injectors, now can i still use the fmu and use the "Afc Hack" method of tuning. people say to turn all the settings down the -40 from 1k-4k rpm then go up gradually by 5k or so to redline. and set the throttle switch point at 71%-72% or something of that nature. So can i still use the fmu or should i jus get rid of it. Also would i still need the missing link because i hear that the stock honda map can read up to 11psi?

 

AFC hack really isnt that great because as an adverse affect it causes ignition to get advanced. advancing ignition to its max during boost isnt good.

 

If you are utilizing the conventionally known AFC hack, then the FMU and Missing Link are not used. The MAP sensor MUST see the boost signal in order to provide adequate fueling under boost. This means you cannot bleed the signal to the MAP sensor in any way (ie. Missing Link or check valves). The FMU and/or inline fuel pump are also not utilized in the conventional hack.

 

if you do use the FMU and the check valve/missing link method just have your settings as

1000 -38
2000 -35
3000 -30
4000 -25
5000 -15
6000 -15
7000 -15
8000 -10

a couple of people i knew with GSR motors used that method. Try to get on a dyno though. That is the sure way of having a strong and healthy setup.

 

what would happen if i were just to try to use the fmu and not use the missing link/check valves? could i do this

 

honestly i would use hondata or something along thoes programs, i have ran the hack and the car ran ok and was tuned with a wideband and just wasnt smooth and it does throw your timming off. now i run hondata and thats the way to go yeah it might cost more but the results are day and night , car is so smooth and fuel ing and everything is great. here is another thing to think about you still have to retard your timing some how, yeah you could use a msd 6 btm but they cost like 350 ish or so , well by the time your done buying a afc and btm you could have allready had hondata and half your tuning cost which you would still need with the afc. this is just how i look at it and y i went to hondata

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C1CYA &raquo;</TD></TR><TR><TD CLASS="quote">honestly i would use hondata or something along thoes programs, i have ran the hack and the car ran ok and was tuned with a wideband and just wasnt smooth and it does throw your timming off. now i run hondata and thats the way to go yeah it might cost more but the results are day and night , car is so smooth and fuel ing and everything is great. here is another thing to think about you still have to retard your timing some how, yeah you could use a msd 6 btm but they cost like 350 ish or so , well by the time your done buying a afc and btm you could have allready had hondata and half your tuning cost which you would still need with the afc. this is just how i look at it and y i went to hondata </TD></TR></TABLE>

Agreed

 

i ran a fmu on my afc hack and it was tuned on a dyno. it ran good and strong but then i got hondata and it made the world of a differance.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbopimp &raquo;</TD></TR><TR><TD CLASS="quote">If you are utilizing the conventionally known AFC hack, then the FMU and Missing Link are not used. The MAP sensor MUST see the boost signal in order to provide adequate fueling under boost. This means you cannot bleed the signal to the MAP sensor in any way (ie. Missing Link or check valves). The FMU and/or inline fuel pump are also not utilized in the conventional hack.</TD></TR></TABLE>
Really?... I have a friend with a 12 sec Sohc civic that uses all of them on his car..Missing link + FMU + AFC on DSM 450CC's...everything runs and works perfect with 16PSI's of boost.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fjt &raquo;</TD></TR><TR><TD CLASS="quote">
Really?... I have a friend with a 12 sec Sohc civic that uses all of them on his car..Missing link + FMU + AFC on DSM 450CC's...everything runs and works perfect with 16PSI's of boost.

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i ran a similar setup and loved it. Two of my friends run similar setups with good and bad outcomes. I would highly recommend hondata, thats what i'll have when my cars back on the road.